package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.PageDto;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.enums.HttpEnum;
import com.itheima.reggie.service.EmployeeService;
import com.itheima.reggie.utils.LoginThreadLocal;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

/**
 * 员工controller
 *
 * @author Upjqs
 * @since 2024-01-28 15:14
 */
@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     *
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {

        //1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername, employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3、如果没有查询到则返回登录失败结果
        if (emp == null) {
            return R.error("登录失败");
        }

        //4、密码比对，如果不一致则返回登录失败结果
        if (!emp.getPassword().equals(password)) {
            return R.error("登录失败");
        }

        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if (emp.getStatus() == 0) {
            return R.error("账号已禁用");
        }

        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);
    }

    /**
     * 员工退出
     *
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
        //清理Session中保存的当前登录员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    /**
     * 分页条件查询
     *
     * @param dto
     * @return
     */
    @GetMapping("/page")
    public R page(PageDto dto) {
        return employeeService.pageList(dto);
    }

    /**
     * 新增员工
     *
     * @param employee
     * @return
     */
    @PostMapping
    public R save(@RequestBody Employee employee) {
        return employeeService.add(employee);
    }

    @GetMapping("/{id}")
    public R getById(@PathVariable Long id) {
        return employeeService.get(id);
    }

    /**
     * 修改
     *
     * @param employee
     * @return
     */
    @PutMapping
    public R update(@RequestBody Employee employee) {
        if (null == employee) {
            return R.error(HttpEnum.PARAMETER_NULL.getMsg());
        }
        employee.setUpdateTime(LocalDateTime.now());
        employee.setUpdateUser(LoginThreadLocal.getCurrent());
        employeeService.updateById(employee);
        return R.success("员工信息更新成功");
    }
}
